Overview
The LM2755TMX/NOPB is a charge pump LED controller produced by Texas Instruments. This component is designed to drive LEDs with a high level of efficiency and control. It features an I2C compatible interface, making it versatile for various applications requiring precise LED management. The device operates within a temperature range of -30°C to 85°C, ensuring reliability in a wide range of environmental conditions. It is packaged in an 18-pin DSBGA (Dual Side Ball Grid Array) package, which is compact and suitable for surface mount technology (SMT).
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | LM2755TMX/NOPB |
| Package Type | 18-DSBGA |
| Number of Channels | 3 |
| Maximum Output Current per Channel | 30 mA |
| Operating Temperature Range | -30°C to 85°C |
| Supply Voltage Range | 2.7 V to 5.5 V |
| Topology | Switched Capacitor (Charge Pump) |
| Frequency | 1.25 MHz |
| Interface | I2C Compatible |
| Peak Efficiency | 90% |
| Shutdown Current (Typical) | 5 μA |
Key Features
- I2C Compatible Interface: Allows for precise control and configuration of the LED driver through an I2C interface.
- Switched Capacitor (Charge Pump) Topology: Efficiently boosts the input voltage to drive LEDs, with a peak efficiency of 90%.
- Programmable Ramp Control: Enables smooth and controlled LED brightness transitions.
- Constant Current Output: Ensures consistent LED brightness by maintaining a constant current output per channel.
- Low Shutdown Current: Typical shutdown current of 5 μA, which is beneficial for power-saving applications.
- Compact 18-DSBGA Package: Suitable for surface mount technology and ideal for space-constrained designs.
Applications
- Backlighting: Ideal for backlighting applications in LCD displays, smartphones, and other portable devices.
- General LED Lighting: Suitable for various LED lighting applications requiring efficient and controlled LED driving.
- Portable Electronics: Used in portable electronics such as tablets, e-readers, and other handheld devices due to its low power consumption and compact size.
Q & A
- What is the LM2755TMX/NOPB used for?
The LM2755TMX/NOPB is a charge pump LED controller used to drive LEDs efficiently in various applications, including backlighting and general LED lighting.
- What is the operating temperature range of the LM2755TMX/NOPB?
The operating temperature range is -30°C to 85°C.
- What is the maximum output current per channel of the LM2755TMX/NOPB?
The maximum output current per channel is 30 mA.
- What interface does the LM2755TMX/NOPB use for control?
The LM2755TMX/NOPB uses an I2C compatible interface for control.
- What is the topology of the LM2755TMX/NOPB?
The topology is a switched capacitor (charge pump).
- What is the peak efficiency of the LM2755TMX/NOPB?
The peak efficiency is 90%.
- What is the typical shutdown current of the LM2755TMX/NOPB?
The typical shutdown current is 5 μA.
- In what package is the LM2755TMX/NOPB available?
The LM2755TMX/NOPB is available in an 18-pin DSBGA package.
- Is the LM2755TMX/NOPB RoHS compliant?
Yes, the LM2755TMX/NOPB is RoHS compliant.
- What is the frequency of operation for the LM2755TMX/NOPB?
The frequency of operation is 1.25 MHz.
